For a couple of weeks I am now experiencing problems with my trackpoint and touchpad on my Thinkpad T460p on Ubuntu 16.04. I am normally using trackpoint only, preferably with touchpad being disabled.
After a fresh install everything worked fine, probably because
synaptics still managed the input devices instead of
After a kernel upgrade the scroll functionality was gone and sensitivity of touchpad and trackpoint was messed up. Manually switching back to an older kernel version fixed the problem.
Unfortunately I removed this kernel version via a thoughtless
autoremove, and even after manually reinstalling this kernel version I could not get my pointing devices to work as before.
Now I am running on kernel 4.4.0-59-generic with libinput and synaptics installed.
xinput is giving me:
⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ PS/2 Synaptics TouchPad id=12 [slave pointer (2)] ⎣ Virtual core keyboard id=3 [master keyboard (2)] ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)] ↳ Power Button id=6 [slave keyboard (3)] ↳ Video Bus id=7 [slave keyboard (3)] ↳ Video Bus id=8 [slave keyboard (3)] ↳ Sleep Button id=9 [slave keyboard (3)] ↳ Integrated Camera id=10 [slave keyboard (3)] ↳ ThinkPad Extra Buttons id=13 [slave keyboard (3)] ↳ 00:0C:8A:7E:A5:23 id=14 [slave keyboard (3)] ↳ AT Raw Set 2 keyboard id=16 [slave keyboard (3)]
So my trackpoint still works but is no longer recognized as such.
The settings of my touchpad show:
Device 'PS/2 Synaptics TouchPad': Device Enabled (139): 1 Coordinate Transformation Matrix (141): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000 libinput Accel Speed (276): 0.000000 libinput Accel Speed Default (277): 0.000000 libinput Accel Profiles Available (278): 1, 1 libinput Accel Profile Enabled (279): 1, 0 libinput Accel Profile Enabled Default (280): 1, 0 libinput Natural Scrolling Enabled (281): 0 libinput Natural Scrolling Enabled Default (282): 0 libinput Send Events Modes Available (260): 1, 0 libinput Send Events Mode Enabled (261): 0, 0 libinput Send Events Mode Enabled Default (262): 0, 0 libinput Left Handed Enabled (283): 0 libinput Left Handed Enabled Default (284): 0 libinput Scroll Methods Available (285): 0, 0, 1 libinput Scroll Method Enabled (286): 0, 0, 1 libinput Scroll Method Enabled Default (287): 0, 0, 1 libinput Button Scrolling Button (288): 2 libinput Button Scrolling Button Default (289): 274 libinput Middle Emulation Enabled (290): 0 libinput Middle Emulation Enabled Default (291): 0 Device Node (263): "/dev/input/event6" Device Product ID (264): 2, 1 libinput Drag Lock Buttons (292): <no items>h libinput Horizonal Scroll Enabled (265): 1
I can change the pointer speed via
xinput --set-prop which takes effect on touchpad and trackpoint. But even maximum speed is too slow on the trackpoint. I can disable the touchpad but that also disables the trackpoint, and although the
libinput 'Palm Detection' is enabled I frequently perform random clicks while typing, which is very annoying.
So it seems like trackpoint and touchpad are recognized as one pointing device with limited functionality (e.g. only On-Button Scrolling).
I only want a fast trackpoint and a disabled touchpad. So I guess the options are:
- Getting the system to use
libinputdoes not work unfortunately)
libinputto recognize touchpad and trackpoint correctly
- Something I did not think of